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Finding the Third Proportional to 66,425,661 and 143,768,790

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Solution

The third proportional to 66,425,661 and 143,768,790 is: 311,166,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,425,661 : 143,768,790 = 143,768,790 : x
  2. Step 2: Convert to fraction form
    66,425,661/143,768,790 = 143,768,790/x
  3. Step 3: Cross multiply
    66,425,661x = 143,768,790 × 143,768,790
  4. Step 4: Simplify right side
    66,425,661x = 20,669,464,978,064,100
  5. Step 5: Solve for x
    x = 20,669,464,978,064,100/66,425,661
  6. Step 6: Final answer
    x = 311,166,869.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.